Bill Cheek - World Scanner Report

Publisher/Editor: M, D, Cheek, Sr. aka "Dr. Rigormortis" V2N7: August, 1992

T Tig WORLD SCANNER REPORT

A Journal of VHF-UHF Scanner Technology & Engineering ISSN 1061-9240

Published at: COMMtronics Engineering; PO Box 2624T8; San Diego, CA 92196 Copyright (c) 1991-2 <A11 Rights Reserved) $4.00

THE YEAR OF THE INTERFACE CONTINUES
HB-232 Release is imninent!

The soon-to-be famous HB-232 Scanner/Computer Interface
continues its development and progress out of Beta and
into Charlie Testing. All parts are in stock except the
printed circuit boards which are assured to be right on
schedule for release by the end of July. The only other
loose end is the HB-232 Program , but which appears to be
right on schedule for August 3rd. So if all continues to
go well, we will start shipping HB-232 Kits on or about
August 5th. Many of you may have ordered with the
understanding that shipment might not be before the end
of August. At this writing, I think we will beat that
estimate by three weeks. Now THAT is a deal, where in
this day and age, estimates usually run the other way.

Speaking of the Charlie Test phase for the HB-232, let me
take this opportunity to tell you more about it and what
to expect. You see, the formal announcement of the HB-
232 won't come until Fall, probably mid-late September.
Until then, we will continue to refine and develop the
HB-232 Program and Documentation. This means regular
changes can be expected, some of which will undoubtedly
be due to YOUR input. In a way, you Charlie Testers are
guinea pigs for the formal Release Version to come in the
Fall. Compensation includes a nice 249! discount off the
regular price, as well as the formal Release Version of
the Program and Documentation. You'll have had a hand in
the development & configuration of the HB-232. Your
input will be extremely valuable because until now, the
only other input has been from our persnickety, critical,
never satisfied Beta Testers.

Don't get me wrong, these guys have been fantastic and
indispensable in scraping off the rough edges. But now
comes another important phase in the development of the
HB-232: actual market testing. You guys are going to be
pleased and satisfied with the HB-232 right off, thanks
to the efforts of the Beta Testers, but we’re depending
on YOU to help put the polish and the shine on the first
Release product. You can do this by thoroughly testing
every aspect of the HB-232 and its Program and then let
us know what you like and especially what you don't like
or would like to see changed. The Beta Test crew was
hand selected for their specialized expertise in critical
areas of the Big Picture of the HB-232, but you Charlie
Testers are more typical of the HB-232 Market.

There is no requirement that you help us out, of course,
but there will be an incentive for those who provide a
meaningful report of either a notably positive OR
negative slant for our study before the end of August,
1992. At the very least, I will make sure you get at no

extra cost at least one major revision or update to the
Program AFTER the Release version, if any are done within
the year after purchase. Normally, major revisions or
updates are sold for profit, but yours will be free, if
downloaded from my BBS, or at a minimal handling charge
if you prefer a disk. By the way, all registered Charlie
Testers will receive special clearance to a restricted
area of my BBS where you'll be able to download Program &
documentation revisions, special files, & newly developed
scripts for the HB-232. If you contribute a meaningful
Report or Evaluation of your impressions of the HB-232
and its Program before the end of August, you'll receive
even higher clearance for access to the major rev.ision
file areas. All original purchasers of the HB-232 before
September 15, 1992, will be automatically registered as
Charlie Testers after the first log-in to the Hertzian
Intercept BBS. Those whose Reports are received before
Sept 1, 1992, will be upgraded even higher. Purchasers
of the HB-232 after the formal announcement this Fall
will not receive special BBS access or entitlements.

There will be a public message & tech support conference
established on my BBS for ALL HB-232 Owners, however, and
I hope to network this conference to a number of BBS’s
around the USA and Canada to make access easier and less
expensive. The idea here is that as more and more people
log onto my BBS, there will be less and less opportunity
for others to do so A way around this is to network the
HB-232_C Conference to other BBS's in major areas around
the continent. It's a simple matter for network-capable
BBS's to do this, so you might ask your favorite local
SysOp if he/she would be interested in importing the HB-
232_C Conference for you. If interested, please refer
them to me at the Hertzian intercept BBS . [619} 5T8z9247_i
FidoNet address 202/731 . The more BBS's to participate,
the more benefit to all. The HB-232 has so much latent
capability that even we, its developers, don't know all
the potential impact of this wonderful addition to the
PRO-2004/5/6 family. You'll see what I mean as you become
proficient in the use of your HB-232.

You will wish there were ways to communicate or affiliate
with other HB-232 Owners, and that's exactly what the
fledgling HB-232_C conference will be all about! Not
only will it offer tech support to those who need it, but
it will be a forum for the exchange of techniques, ideas
scripts and general info about the HB-232 & its Program.

I am going to do everything in my power to make this
Conference widely available on a network of BBS's in key
areas of the continent to make access easier and long
distance costs lower. By the way, my standing offer to
help you find BBS's in your area is still good. Just
provide me with your Area Code and any other Area Codes
of interest and I can make you a nice list of BBS's in
that region for you to explore.

The HERTZIAN INTERCEPT BBS NOW HAS ITS 1st AFFILIATE

This is a good opportunity to introduce to you, the
Feedhorn BBS. [818] 907zlMi > located in the Los Angeles
area: the first to affiliate with my Hertzian Intercept
BBS. The Feedhorn's SysOp, Brian Greer, is an avid
scannist, electronics technician and a most amicable
fellow. Naturally, the Feedhorn’s theme is radio with
special emphasis on scanners. If my BBS hours are too
restrictive for you, or if it's busy when you call, you
can log onto the Feedhorn BBS and connect with me on two
different message areas: RAD 10_TEK and/or HB-232_C.
Of course, there will be other message areas on the
Feedhorn which are not sent to my Hertzian Intercept and
vice-versa, but you will find the RAD 10_TEK and HB-232_C
conferences shared by both BBS's, the contents of which
are electronically exchanged each night. This means that
if you post a message to me on the Feedhorn today, I will
see it first thing the following morning. I’ll fire off
a reply and you'll see it that very day if you check into
my Hertzian Intercept, or the following day on the
FeeAora! This is the concept by which I hope to expand
the HB-232_C Conference around the continent! All it
takes is another BBS in your area to cooperate. The only
disadvantage of the networking concept is the time delay
since we SysOps exchange our electronic "mail" during the
wee hours of the night when long distance rates are at a
minimum.

COMPUTER LINKS ESSENTIAL TO FLOW OF HOBBY INFO

FAX call! Either way, the caller won't see a difference.
Now, if you want to save time with an important written
message, just prepare a FAX transmittal and send it per
your customary procedure to (619) 578-9247 anytime EXCEPT
between 1:3fpat-5:3fpn, PST. Why not send us a test FAX
message anyway? For those of you ready to upgrade to
this fantastic computer communications resource, contact
the USA distributor of ZyXEL modems at:

ZERO ONE; 4920 E. La Palma Ave; Anaheim, CA 92807
Voice (714) 693-0808 FAX: (714) 693-0705
BBS: (714) 693-0762

You might be glad you did; I am. For you BBS callers,
relax, nothing has changed except that we can go as fast
as you now. Or as slow. Our modem will match your speed
whatever it may be.

SCANNER FREQUENCY MANAGEMENT - PART 5
by Perry Joseph, DataFile, Inc.

Developer of ProScsn Frequency Management System

A lot of ground has been covered in our discussion of
computerized frequency list management. It's easy to say
there are many ways to accomplish the task. In my last
article, I promised an easy solution for non-programmers
who want to simplify the chore of frequency management.
ProScan, of course! It's EASY TO USE and costs a lot
less than most database management programs. What's
better is not having to learn how to program a database!

Please pardon my apparent departure from the main theme
of Scanner Hacking here but this matter of BBS Networking
is pertinent, because that's the primary channel for the
timely flow of information in our Hobby! Consider how you
learn out about scanner hacks? Magazines, newsletters,
word of mouth, etc.! More often than not, information
from these media is months old by the time you get it!
In contrast, I can electronically transmit the entire
contents of this issue of the tiorld Scanner Report in a
matter of seconds! Don't get me wrong here; there's no
substitute for the printed word yet, but by golly,
neither is there is a substitute for the BBS-1 ink to our
Hobby! Information about our Hobby can travel around the
world in a matter of a day or two, and the more of us who
are linked into this medium, means the more data we can
pass along, not only to each other but also to those who
don't own or don't want to use computers!! More and more
of the data that I am passing to you HERE in the WSR is
channeled to me by computer link.

HERTZIAN INTERCEPT BBS NOW HAS
A HIGH SPEED MODEM WITH FAX!

We've just acquired a ZyXEL U-1496E Modem with capability
of v.32bis/v.42bis and FAX! This means we can match most
any data transfer speed from 300 to 16,800-baud as well
as send and receive FAX! The "smarts" are in the modem
which can detect whether a caller is making a BBS or a

Before developing ProScan, I looked at custom frequency
management software in the public domain as well as demo
versions from the commercial field. I hoped to find a
ready made solution to eliminate reinventing the wheel.
Several good programs were available, but none suited my
particular needs. Too many menus, too many keys to
press, too many commands to remember, & too many crashes.

Software development is my profession and scanning is my
hobby. Since I had the tools to build my own, I decided
to develop a different approach to frequency management.

ProScan, in its infancy, was minimal, but served my basic
needs. It wasn't originally intended for commercial
distribution, but I passed out copies of ProScan to a few
scanner friends. At their urging, I improved it and
released ProScan as a commercial product.

My primary concern was to keep it simple. I wanted all
users to be able to learn how to use it in a short time.
More importantly, I wanted frequency data to be available
immediately without extra menus and with the fewest
keystrokes possible (I'd rather press one key than two).

ProScan is a customized DOS based program which utilizes
the xBase file format. The main screen offers a view of
nineteen frequencies at a time. You scroll through the
frequency list by using the Up/Down, Page Up/Page Down

The "WORLD SCANNER REPORT" (c) 1991-2;

V2N7: August, 1992; Page 2

keys or the Ctrl-Page Up/Ctrl-Page Down keys to go to the
top and bottom of the file. All data is on-screen with
exception of notes. Editing a frequency record is as
simple as pressing the Enter key. Entering of notes is
only a space bar away. Other on-screen data includes
automatic bank numbering, channel number, name, class,
type, call sign and an indicator to let you know if there
are additional notes. There’s an active clock, screen
blanking, help screens and more.

One of the most unique features of ProScan is its ability
to instantly locate a frequency record, appropriately
called "Intelligent Seek". When the scanner stops on an
active frequency, you want the ability to look up the
channel number and for a quick reference on who's
talking. With ProScan, you type in the channel number
and press the Enter key, NO MENUS REQUIRED! You can also
seek by frequency number or name and you don't have to
tell ProScan which of the three types it is! When
looking up names, you can enter in partial strings or the
first few letters and ProScan will point you to the
closest match.

"Intelligent Seek” is especially useful when you get a
new magazine or book with frequencies lists. You can key
in "new" frequencies as you read them to see if you have
them on file (which, if you’ve been scanning long enough,
you probably do). You don't even have to look at
ProScan's screen for the results! Three different tones
are provided depending on whether ProScan finds an exact
match, close match or no match (the tones can be turned
off if you're allergic to them). If a single tone
sounds, you know you already have the frequency on file
and can immediately check your description against that
in the publication. If you don't have the frequency, you
pick a new record location and enter in the new data. If
you keep the new records grouped together, you can print
a partial list of just the new frequencies and then enter
them into your scanner.

Another great feature is to see your data listed in
different orders. ProScan allows you to order (sort)
data by channel, frequency, name, location and type.
ProScan uses active index files; sorting is not required
and look ups take a fraction of a second. Indexing
allows you to change orders immediately without waiting
for physical sorts to the disk (diskus interruptus ). And
what's better, you don't need menus for this either.
Just press the left or right arrow keys to change from
one order to the next. The results are immediately
visible on screen. You can also print in any one of
these orders as well as by selected groups.

The frequency record structure is simple and somewhat
universal with particular emphasis on compactness. Each
record uses only 75 bytes. Many other programs use
double this amount and more. Conversely, I wanted to
provide plenty of space for attaching additional notes to
each frequency.

Each record is capable of adding approximately 400 lines

of notes. The note pad offers automatic insertion of a
time/date stamp each time an entry is made to notes and
can be turned on or off. The note pad has additional
functions including string search, search and replace,
block functions and other word processing features.

Many long hours went into the development of ProScan. It
has been thoroughly tested and provides error trapping
for most events. There are numerous dialogue boxes to
assist the user when entering data or using the various
functions. It is these type of features that really make
the difference.

ProScan sells for $39.95. For subscribers to the

venerable WSR, if you order by September 1st, you may
purchase ProScan for only $24.95. And for those who will
be using the HB-232 Interface, I will include a free
utility program for converting your ProScan frequency
file to an HB-232 compatible Autoload file. ProScan
comes complete with documentation and an easy to use
installation program. Requires DOS, hard disk, 640K and
works with Epson/IBM or compatible printers. Send check
or money order to DataFile, Inc., P.0. Box 20111, Dept.
WR, St. Louis, MO., 63123. Please be sure to specify
disk size (3.5" or 5/25") and a reference to the World
Scanner Report and this article. If you’re a skeptic,
you can order a demonstration version for $7.50 which is
applicable towards purchase. (NOTE: If you want the
ProScan-to-HB-232 file conversion utility, be sure to
request it. The HB-232 Utility is not available with
demo orders.)

In closing, I hope you enjoyed this series of articles.
If you have any questions or comments, please drop me a
line. I would enjoy hearing from you. 73's till then!

EBITCffl’s tSXSUE: I've known Perry for better than a year
now (fine gentleman), and have had some opportunity to
play with his PROSCAN. Not a bad little file manager!
When I first fired it up, I hadn't had my first MSDOS
computer for more than a week or two, so you can well
imagine my lack of savvy and proficiency, yet I was

navigating through PROSCAN like a pro after only a few

minutes. If you are not a computer & database expert, it
could very well be that PROSCAN will open a new dimension
to scanning for you. If you are going to buy the HB-232,
PROSCAN might smooth over any initial aversion to data¬
base management that you might harbor. Mr. Joseph was
one of the Beta Testers of the HB-232 so some of the

"look and feel" of the Program is to his credit. Let's
hear it from YOU now; drop a note to Perry with your
questions and comments about database management. Thank
you, Perry, for your excellent introductory series to

this increasingly important topic. By all means, please
feel invited to continue the discourse. I think we're
ready for Databases 102 now! NOTE : I recently procured
the Grove FCC Database for California! Wow! Am I ever
GLAD I'm proficient in database management! If tracking
a few hundred frequencies is a chore for you, imagine
what 250,000 might be like! PROSCAN could very well be a
great learning-aid if you're going places in scanning!

The "WORLD SCANNER REPORT" (c) 1991-2;

V2N7: August, 1992; Page 3

THE READERS WRITE

From Joanne Haines, CALIF: Some general comments; I am
glad you speak your mind, even if you have to step on
some toes, I would rather you be honest and to the point
than be two-faced and not hurt anyone's feelings in order
to keep the subscriptions up or what ever.

In the WSR V2N6, July 1992, "APOLOGIES" I don't think was
necessary. But it was nice you had the compassion to do
so and still get your point across. I agree with you on
this matter 100%.

At this time I am unable to purchase a computer, and have
very little knowledge about them as well, so in my case
even trying to get a used one is very difficult (not only
money wise but, because of lack of good hard knowledge
what to look for.) My uses would be for Scanner/SW Log
keeping, frequency lists, comments, etc., and I'd use it
with my Digital Data Interpreter from CCS and of course,
in the future with the HB-232, you are coming out with
which I think is just great; everyone should have one! I
will, God willing and the creeks don't rise!

Anyway, the way it looks, it will be about two years

before I will be able to even think about getting a
computer (Darn it!). So at this time the sections (on
computers) in the WSR are of little use to me. But I am
keeping them, and hopefully in the future they will be a
source of pertinent information.

I get a lot from your MODs in the tISR. This at least
gives me some options to improve my scanner, even if the
money is low at home. I think the How To Do Scanner
Modifications or How To Properly Hack Your Scanner, was
just great AND I WISH YOU WOULD HAVE THIS SECTION IN

EVERY ISSUE. I am sure we could all benefit from this.

Some things I would like to see, if you make a permanent

section out of it, are: When you're hacking on your

scanner's circuit board and destroy one of those little
flat circuit traces, how can you repair it or replace it

with a make-shift job? What are the proper ways to
remove, replace, change, add a wire lead to a surface-
mounted component?

Also I like your product news and updates. Like when you
told us to stock up on Radio Shack's 25-cond cable #278-
776, because they are discontinuing it. I did! Thanks!

There are times you get a little too technical for me

where you lose me. But not very often, YOU KEEP

EVERYTHING SIMPLE AND EASY TO UNDERSTAND. (this is a

pain and very hard for you to do! But it is very much
appreciated!!! -Joanne

EDJJORlS REPLYj Thank you for the kind words of support
and encouragement, Joanne. Normally, I would neither
solicit nor print complimentary remarks because it's not
ethical to toot one's own horn. I put yours in because

whenever a larger issue is at stake, it's probably best
for all Readers to have a look at BOTH sides. Your not
being computer oriented and still supportive of computer-
related material is one pertinent side of this issue.
You make a good case for "foresight" in anticipating the
day when you WILL have a computer. That's the spirit I

hope most other computer-less Readers will have. By the

same token, we’re not going to deal exclusively with
computers. They're here to stay, though, and now are
solidly entrenched into RADIO, and we have to keep pace.

I'm not a great adviser on computers (yet), but my

experiences might benefit you and others, so let me

address those concerns. Mark my words when I said I got
an XT/clone for $100 and a 40-Mb Hard Drive for another
$100; total investment: $200. Hardly out of range of
those who can afford a $400 scanner and other supporting
toys! For now, let me give a rule or two of thumb to go
by: AVOID, at all costs, even if almost FREE, the

original IBM PC and PCjr. These are antiques and not
worth your hard-earned cash. If the price is right,
there is nothing wrong with the XT/clone models, even
though these, too, are antiquated now. An XT will nicely
control your PRO-2004/5/6 via the HB-232 Interface not to
mention CCS’ Digital Data Interpreter. If you go for an
XT/clone, I would strongly urge you to settle for no less
than 640-k of RAM memory; at least one floppy disk drive
(preferably two), and not less than a 30-Mb Hard Drive.
It should also have at least one printer port and one
serial port. It should be equipped with MS-DOS 3.3 or
higher. At the XT level, I have no preference for color
or monochrome, especially if you’re controlling radio
equipment. Understand that XT/clones are not great for
productivity now, and I do NOT recomend ’em for anything
except dedicated control of radio and other equipment.

The best deals on the used market today appear to be the
AT/clone class, where again I would recomend a minimum
of 640-k of RAM (1-Mb preferred) along with one or two
floppy disk drives; a 40-Mb Hard Drive, and preferably a
VGA or SVGA color monitor. It should also have at least
two serial ports and a printer port and be configured
with MS-DOS 3.3 or higher (5.0 is current.) Frankly,
even the AT/clone class has now become antiquated. It is
said that the 386SX/16 class is the entry-level MS-DOS
computer, and indeed, full-blown 386SX systems can be had
for under $1000. Prices are dropping like flies in a
poison cloud. In fact, you can hardly find new AT/clones
anymore. They're disappearing fast. So used ones should
become almost as affordable as my clunker XT soon.

Next subject matter: How To Properly Hack Your Scanner
might be best driven by specific questions for a while,
since it is hard for me to guess at what people know and
don't know, but since you asked .

R EEAL&1M DAMAGED Q1MUI TRAC ES- Inevitably, this
happens and most of the time, it's no big deal. The
repair can be tedious, depending on location of the
trace, so settle in with some patience and the right
tools and materials and all will be well. When you have

The "WORLD SCANNER REPORT" (c) 1991-2;

V2N7: August, 1992; Page 4

determined the location of a damaged circuit trace,

follow it off to either side of the break and find two
good spots where you can insert a sharp tool such as an
Xacto Knife. Gently scrape the surface lacquer off the
traces on either side of the break at accessible

locations. Scrape until the copper shows bright and
shiny for a length of at least 1/8" to 1/4". Tin your
soldering pencil (fine tip, please) and then apply a bit
of fresh solder to the shiny copper traces. Ensure a
nice little blob of solder on each trace. Then cut a
tiny wire, preferably a solid, single strand 26-30ga

insulated wire to fit between the solder blobs on the

traces. Strip a bit of insulation from each end of the

wire and tin those stripped ends with solder. Then

solder one end of the wire to one solder blob and the

other end to the other solder blob. Job done!

WORKING WITH SURFACE MOUNT COMPONENTS: We can only touch
upon this subject now with more to come later, perhaps.
If you only need to solder a wire to one end of a surface
mount component, no sweat: tin your soldering pencil
tip, and then apply a bit of fresh solder to the desired
solder pad of the component. In effect, you'll just

freshen the solder on the pad; nothing more. Then strip
the end of your wire and tin it with fresh solder. Then
solder that wire end to the end of the surface mount
component. Job done.

REMOVING SURFACE MQML CgtjPMMIS : well, hell, there's no
good way to do it without a very expensive desoldering
tool. So, just crush the component with diagonal cutting
pliers, and then desolder the broken ends from each pad.
Replacing surface mount devices is easier, if you have
them, but you' 11 need tweezers and a steady hand to
position them properly before soldering one end. In most
cases, surface mount components can be replaced by
standard components if you pay attention to lead dress
and positioning of the component.

SURFACE MQUjlT CHIPS are a real booger-bear sometimes,
especially the stock memory chips in the PRO-2004/5/6,
PRO-2022/2021, PR0-3T/34/32, PRO-2026, BC-/60/950XLT, and
BC-590/600XLT. Shooey! Many pro’s like to just snip
them out first and then desolder the cut lead ends from
the pads. This is the safest procedure for the printed
circuit board, but of course, the chip is about as useful
as shoulders on a snake after that. If you're a Klutz,
maybe that's the best way to remove a SM chip. I can't
stand to destroy anything, though, so I use desoldering
wick to first absorb all excess solder from each pin/pad.

I do two or three applications of the wick in brief
periods. Then I slip a stout hat pin (the kind with a
"pearl" on one end) under one row of pins and exert a
gentle upward pressure as I run the soldering pencil down
the row of pads. This process makes the pins pop free
kind of like a row of dominoes falling. Repeat the
process on the other row and put the chip away in a safe
place. Use desoldering wick to clean up the vacant pads.
This technique CAN result in damaged pads and traces if
you're not careful, though. There's a fine line between
TOO MUCH heat and not enough ; TOO MUCH force and not

enough. I boogered up a few pads & traces in my earlier
days, though I can't recollect damaging any in the last
couple of years. Nowadays, I can pop a 24-pin SMD chip
slicker than snake snot in less than 5-mins with no
damage. But I've done a couple hundred in getting that
good at it. Take your choice of these two methods, but
in either one, exercise GREAT PATIENCE and don't get
rattled or hurried. Patience is the KEY in every area of
scanner hacking! Take your time and be sure of the
correctness of every step you take! Good questions!

Here's an off-the-wall note from a disgruntled inquirer
that I want to share with you for the sake of involved
principles on both sides:

FROM P.S. Omaha. NE: "I was a little surprised today to receive
what I consider a very rude letter from you, an ex-CEO and
engineer, to me who could be a prospective customer, just because
I failed to read some of the literature you sent about sending a
SASE and eitra stamp with any requests. I'm really sorry about
that. As a retired engineer, I've made mistakes before and I'm
very sure that I'll make others. Your short reply could have, for
the same money, answered my questions and then mentioned that I
should have sent a SASE and extra stamp. I would have placed a
couple of stamps in the mail to you immediately. I'm sure that my
original questions were trashed so for now I'll sit back and see
if you'll take the time to respond. Just in case my questions
weren't trashed, I have enclosed a SASE and 2 extra stamps. If
you don't reply, you'll have 3 stamps to use elsewhere. /P.S."

ED/TOff’S REPLY : Your questions will be answered to the
best of my ability by private correspondence, but the
principles will be addressed here. You make a good point
from your point of view, to be sure. I don't argue your
perspective. But you need to see the other side of the
fence before finalizing your judgment. First, our Policy
of a SASE and extra stamp for personal replies to hobby-
related and non-business inquiries is based on NEED and
certainly not profit. I receive anywhere from five to
twenty hobby inquiries a day, the cost of which can range
to well over $10 a day, depending. The time to deal with
each piece of correspondence ranges from ten minutes,
minimum, to a half-hour or more. Go figure. Before YOU
retired, could you afford 10-hrs/day for correspondence?
It can be perceived as rude of you to expect me to drop
what I am doing; spend my personal funds and time to
cater to your leisure pursuit. Your inquiry was not

business related and there was nothing to suggest that
you were a potential customer. It is a generally

accepted courtesy to defray costs of reply when asking
for free information. You failed to render that courtesy
at the onset; why is it incumbent on me to include your
inquiry in the stack to be answered when I can hardly
afford the time to reply to those who are courteous? In
the past, I would normally put inquiries like yours at

the bottom of the stack, but the volume of correspondence

has grown to the point where the bottom is never reached.
So we now generate form letters in lieu of ignoring such
inquiries out right, and I rarely see them. There was no
intended rudeness on our part; it would have been ruder
to have ignored you. My staff can quickly stuff form

The "WORLD SCANNER REPORT" (c) 1991-2;

V2N7: August, 1992; Page 5

1

letters into envelopes, but only I can answer technical
questions. But I challenge you to see HOW MANY replies
you get from other authors, publishers and people like me
who have more to do than they can handle. Bets are that
over half will ignore you and most of the other half will
take several weeks or months to reply. In closing,
please consider that in two years, I have well over 3,000
hobby inquiries on file, every one of which has received
a reply. At first, I answered all inquiries, regardless;
but the load increased to where the SASE + 1 Policy had
to be etched into stone. I don't see every letter
anymore UNLESS they qualify first, and then require my
personal attention. I see YOUR point well enough, but am
kind of powerless to do anything about it. Do YOU see MY
point and can you do something about it? I hope the
resolution is self-evident.

Folks, I brought this matter out before you primarily
because a preponderance of my correspondence glows with
compliments and appreciation for what I do. Trouble is,
is that there is a limit to what I can do and still make
a living; pay the rent and feed the kids. Tough world,
but I wanted you to know the score. We're not rude.

PRODUCT ANNOUNCEMENTS

Comes now an ingenious modification from Mark Persson,
(Mr. Digital) who designed the KeyBoard Memory Block
Controller (MOD-28) that appeared in Vol-2 of my SCftMMEB
MODIFICATION HNDBK . The LINKALL is the next evolutionary
step in making Extended Memory modifications look and act
as if they were "factory designed and built".

PRO 2004,5,6 OWNERS
WITH EXTENDED MEMORY

Take automatic control of your memory with
the LINKALL memory control module. Automatically
increments bloc address to next selected bloc and
skips over unselected blocs. Or scan all 6400
chans, hands offl LED's to indicate bloc number
and fifth for programming. Also includes the 2
button KMBC function. Module does NOT include
32K memory chip. Easy install. Send SASE for
more info. 6 month lim. warr. Price $84.95 including

!hi » ns ' M. Persson

1369 Lombardy Blvd.

Bay Shore, NY 11706

The LINKALL EXTENDED MEMORY CONTROLLER was developed for
PRO-2004/5/6 scanners that have been modified with the
6,400-ch Extended Memory MOD-16 in Vol-1 of the Scanner
Modification Handbook . The LINKALL controls the four
memory address lines that are otherwise controlled by DIP
switches or the MOD-28 KMBC circuit that appeared in Vo 1 -
2 of the SCANNER MOD HANDBOOK . The LINKALL has the KMBC
function but more importantly, it auto-increments the
Block address to selected Blocks of your choosing! For
example, if you program the LINKALL to Autoscan only
Blocks 00, 01 and 02 the following sequence will occur in
the Autoscan mode of operation:

As the scanner passes ch-400 at the end of Block 00, the
LINKALL selects Block 01 and scanning starts at Ch-1. At
Ch-400 of Block 01, the LINKALL selects Block 02, Ch-1.
At Ch-400 of Block 02, the LINKALL then cycles back to
Block 00, Ch-1 to repeat the process. This Block 00-01-
02 loop will repeat until you stop the Autoscan process.
Normal scanner functions are not disrupted; the Extended
Memory acts more as if it came with the scanner!!!

Programming the LINKALL is EASY and it scans up to the
full 6,400 channels from 1 to 16 selected Blocks of
memory, hands off, if desired. LINKALL always scans in
Block-ascending order. For example, if you program a
Block 13-07-02-05 loop, Autoscan of the programmed Blocks
will be: 02-05-07-13-02-05-07-13,.etc, After the module
is programmed, memory holds the configuration of the 16-
Blocks to be scanned or ignored. Reprogramming is not
necessary at power up! The onboard memory battery in the
scanner preserves the LINKALL' s memory when the scanner
is off or unplugged. Block ID is visible during operation
from four T-1 size LED's mounted in the front panel which
display the binary count sequence. A 5th LED is used in
the program mode to indicate if a Block is to be selected
or ignored (On for programmed, off for ignore). The fifth
LED remains ON in the Autoscan mode and off in the manual
81 ock increment mode. Three stock Keyboard keys on the
scanner are used to increment the Block address and for
selecting the Blocks to be scanned. Two switches are
mounted on the rear chassis: one resets the Block address
to Block 00 or the home Block. The other switch is used
to enter the three operational modes of the LINKALL
(PROGRAM, AUTOSCAN & MANUAL BLOC INCREMENT). Once
installed, operation is easy and becomes as routine as
turning the scanner on. The module has 22 wires to be
hooked up and if you previously installed the KMBC
function only one more LED need be installed in the front
panel. The fully assembled LINKALL module is ready for
installation but does not include the five LED's or the
two switches, which are available at Radio Shack and
electronic supply stores. You might even have the parts
in your junkbox. The unit is powered from the scanner
and is completely contained inside the radio.

ANOTHER NEAT PRODUCT

ATTENTION HANDHELD RADIO OPERATORS: Scannists, hams,
CB'ers, etc, will take delight in "The Pouch", a tough,
low priced carrying case for portable radios, cellular
phones, pagers, scanners and more! "The Pouch" comes in
a variety of styles & sizes to fit most handheld radios.
"The Pouches" are made of 1/4"-thick neoprene, bound to
an attractive skin, essentially scuba suit material,
designed so it won't fray, let alone come apart, even
under water. There is an extremely sturdy belt loop on
the back made of 2" webbing and a restraining strap made
of the same material, secured on the front with a large
Velcro tab. It would seem that "The Pouch" can protect a
radio from damage by moderate shock, scrapes & vibration.
For more info on "The Pouch", contact Phil Richardson,
"The Pouch", 535 Suffolk Dr, Tucson, AZ 85704

The "WORLD SCANNER REPORT" (c) 1991-2;

V2N7: August, 1992; Page 6

THE REALISTIC PRO-43 IS HERE!

EDITOR'S NOTE: The following , relative to the new PRO-43
Handheld Scanner from Radio Shack, was passed to me from
Tim Dowdle who picked it up from around the BBS Networks:

"I just bought a PRO-43 in an RS store south of downtown
Los Angeles today. It is very small, about the size of 2
cigarette packs on top of each other, but a little more
in depth. It has 200 channels, am/fm switch, 25 channels
per second SCAN,50 steps/sec on SEARCH. No speed button.

I tried a 280 MHz-am freq which worked as well as my PRO-
2006 with the same antenna. The light isn’t worth much.
The display is across the top; then the speaker; then the
keypad. The buttons are small about the size of a pencil
eraser, some are smaller (the only problem I have found)
otherwise it is just as good as the PRO-37, or better. No
time to check intermod. Signals come in clear and some
come in better than my AR1000."

don't count on it! It does have "triple conversion" to
eliminate image interference for all practical purposes.
And it has the Military Aero Band with selectable Mode
for the required AM. I don't know about AGC which would
reduce or minimize intermod and overload. Note that the
PRO-43 does not have 88-108 MHz nor WFM mode. Neither
are the SEARCH increments selectable like in the PRO-
2004/5/6, nor is there a Lockout Review. Nothing has
been said about a "DIRECT SEARCH" function like that in
the PRO-2004/5/6 and PRO-34/37, but it's a fair bet that
it's there. There are conflicting reports on the
manufacturer of the PRO-43, but the most reliable says
it's GRE-Japan, same maker of the PRO-2004/5/6 & PRO-
34/37. It's also said that the PRO-43 requires six "AA"
cells, but which are packaged more compactly than the
PRO-34/37. Given its apparent profusion of surface-mount
components and shrink-wrapped design, I doubt if the PRO-
43 is going to be very modifiable. So the word to the
wise is that if you want one, be content pretty much with
what you get; else don't get it.

The information to follow comes from the PRO-43 Manual:

e 5
e 25

Coverage & S earch Step Increments
30 - 50 MHz
118 - 137 MHz
137 - 174 MHz
220 - 225 MHz
225 - 400 MHz
400 - 512 MHz
806 -1000 MHz
IF Freq: lst-608.005-61
Size:

Speed:

Mode:

Programmable Channels:

Monitor Channels:

Price:

KHz
KHz
§ 5 KHz
@ 5 KHz
§ 12.5 KHz
@ 12.5 KHz

@ 12.5khz (LESS CELLULAR)

1.2 MHz; 2nd-48.5 MHz; 3rd-455 KHz
5 3/4" x 2 3/4" x 1 5/8"

SCAN 25 ch/sec; SEARCH 50 cps
AM & NFM; selectable
200; 20 x 10 Banks
10

$274.95 at MaryMac Industries
(800) 231-3680; ask for Bruce

Bill, please re-post as you see fit. -Tim-

Thanks for the scoop, Tim! I have since learned a little
more about the new PRO-43: it is Cellular capable with
30 KHz Search Steps after a little work, probably on the
same level as restoring cellular in the PRO-34/37, except
you have to crush or remove a surface-mount diode instead
of clipping a lead. The cellular diode, D-4, is located
on the BOTTOM board of the PRO-43. Crush or remove it to
restore cellular. Now I hear it said that if you add a
diode to the empty spots for D-3, you'll gain 54-88 MHz.
Two people have sworn to this, but you never know, of
course. In the PRO-34/37, if you did this, you'd lose
30-54 MHz, so I dunno at this time. I have a Service
Manual for the PRO-43 on back order from Tandy, but it's
not been released yet. I'll have more to discuss after a
thorough review of the manual and perhaps looking inside
one if I get a chance.

Right off, the PRO-43 "looks" like a mini PRO-2006, but

On the whole and in summary, it looks like the PRO-43 is
a natural evolution of the PRO-34/37 to bring it much
closer to the legendary PRO-2006 in a hand held package.

I think one cannot go wrong with this unit, especially at
the discounted price offered by MaryMac Industries.
Let's put it this way: if you’ve been lusting after a
PRO-37, then the PRO-43 will meet your expectations and
more. If it's a real PRO-2006 in a hand held package
that you're waiting for, then don't hold your breath; you
might want to wait another year or two. More later.,.

MORE FEEDBACK + TIPS FROM THE READERS

Dear Mr. Cheek! I too agree with Mr. Morris that there
has been too much emphasis focused on computers in the
WORLD SCANNER REPORT. I bet many readers can't afford a
computer and those that can may question how worthwhile
such a purchase would turn out to be. After all, a poll
once found that 46? of PC users seldom use them. In my
small town there are not thousands of stations that could
benefit from computer management. I was glad to see Mr.
Morris' letter, as it led me to write these few votes.

Sincerely, Danny Buntin, Stillwater, Oklahoma

EDITOR 's REPLY; Dear Mr. Buntin.' Hmm, I dunno about
polls because they're always slanted. But if you have a
VCR, you're using a computer; if you have any sort of a
modern scanner, you're using a computer; if you have a
reasonably late automobile, you're using a computer.
There might be a dozen other ways you're using computers
and not realizing it. All we’re doing here is talking
about using ANOTHER one. Also, I don't agree that "most"
HSR readers might not be able to afford a PC! For one
thing, the WSR is not geared to the bargain-basement
scanner owner. Over 951 of our readers have something in
the BC-760/950XLT class or higher. These are $200 and up
and, mind you, I did a lot of the HB~232's developmental
work on a funky clunker of a 198 4 XT/clone that cost me
$100 plus another $100 for the 40-Mb hard drive; a lot

The "WORLD SCANNER REPORT" (c) 1991-2;

V2N7: August, 1992; Page 7

less than typical scanner costs these days! I don't mean
to speak for yon and Mr. Morris, but frankly I think most
resistance to computers now is based upon fear of the new
and clinging to "old school” ways of thinking. I respect
that; hell, it took me almost ten years to overcome my
fears of MS-DOS and IBM/clones. The bottom line is that
the I VSR cannot cater to the "old school”, We will include
something for it, but we must be avant-garde and ever on
the move toward the leading edge of technology. Let me
remind you that in the 1960's & 70's, the "old school"
still clung to vacuum tube technology, me included, like
stink clings to manure! But solid-state overwhelmingly
won. Imagine a vacuum tube newsletter trying to survive
today! History is about to repeat itself... . 73/Bill

FROM GQRDY OLSON, FARGO, ND: I bought, and enjoyed both
your SCANNER MODIFICATION HANDBOOKS, and did some mods on
a Realistic PRO-2010 that I would like to share with you.
I have also developed an urge (obsession) with the PRO-
2004/5/6, and plan on buying a 2006 soon.

PRO-2010 Mods: SPEEDUP: I successfully changed the 4
MHz crystal in my 2010 to a 6MHz crystal (bought for a
mere $1.50 at my local Jim-Pak dealer.) The original
crystal yielded a mere 7-ch/sec (not the advertised
8/sec) and after the mod, slightly over 12 chan/sec was
realized. I originally tried a 10 MHz crystal, but the
scan went into warp speed, and the radio section would
not work at all. I would guess a crystal cut for 7 or 8
MHz might work, but could be pushing it.

Jack Wilks. St. Louis. MO says! A little trick I found
for the Automatic Tape Recorder Switch (MOD-33) and the
CTCSS Decoder, MOD-31: You said to hook MOD-33's Q-l
input to Pin 13 of the NFM chip. That works fine and
dandy if you don’t have a CTCSS decoder, but I do. See

below for how to let the ATRS work with or without tones:

/yioD-JS P£0-Z00^

A MAA_J> P/A/ /3 XC-2 2005

^ 200 b

SPOT 6 - wwJkl ,-f> Qflse of Gt-/ (vod-33)

v -' /nob-33

-£> Pin 7 0/sf LN\- 32i

OF 7S-32P (mod-ii)

I found that if you remove R-l (47-k) from MOD-33 and
solder Q-l’s input wire to Pin 7 of the OP AMP (LM324N)
on the TS32P, the tape will record only when the correct
tone is present. Since I have my tone decoder in an
external box that’s connected to the scanner with a 9-
cond cable and a 9 pin D-Sub connector. I had to devote
a fifth wire to that pin 7 (but who cares, 4 spare wires
are left). By the way, this pin 7 rises to 6 or 7 volts
when the correct tone is present, and is 0 volts with no
tone, just like Pin 13 on the NFM chip in the scanner.

FROM BERT BORLAND: Sanford. Texas: Hi Doc: Got some
tips for you and my fellow WSR Readers.* About MOD-41,
the speed-up for the BC-200 with the 800 KHz Ceramic
Resonator: this sped things up, but about half of the LCD
memory bank display bars would not blink as the bank was
scanned or if the squelch opened, the display would not
change to the one bar to show which was active. Only
upon pushing the manual button would the display reveal
the bank. My remedy is a 640 KHz Ceramic Resonator,
DigiKey part UP9946. This still renders a big jump in
performance with no ill effects. Digi-Key was all you
had said, Doc; they are professional in every respect and
fast shippers, which counts for a lot to one who is
somewhat in the middle of no-where. I found a great
source for long-play cassettes - Computer Business Svcs,
Inc., CBS Plaza, Sheridan, IN 46069 , (317)-758-4414 .
They invite folks to request info about their megabuck
computer business system and they will include two very
long-play cassettes for you to listen to. The clear
stick-on rubber feet from Radio Shack, number 64-2365 are
great for the keyboard of the 2004. They act like little
magnifying lenses and give a much better feel. That’s it
for now, Doc. See ya.

EVENT COUNTER: I constructed the Event Counter per your
instructions in MOD-30. I found that in the 2010, pin 13
of IC 102 (on the RF board) carries the necessary signal
to trip the counter. I also found a handy connection
point in the jumper wire (Yellow) that runs from Pin 13
to Q126. I simply tapped in a 470-k resistor out to a
jack, connected the rest up as shown in your book, and
everything worked; the first time even!

PRO-2004/5/6 IDEA: Regarding selection of memory banks
for Extended Memory: rather than use DIP switches or
keyboard mods, I found a 16 pos BCD coded subminiature
switch that may be useful. It is the channel selector
switch for a Motorola Sabre portable radio (a walkie-
talkie), It can be ordered through any local Motorola
dealer for about $15-20. They can also order (for some
pocket change) a spiffy knob for the radio, and the
adhesive-backed bezel showing the 16 positions (this
bezel is for the entire top of the portable, showing
volume knob markings, and the switch settings for the
’’Securenet” feature.) It should be simple to connect the
BCD coded switch to a BCD-Binary converter (like the
74LS42?), then hook it right up to the Memory Board,
This is one of the mods I plan on doing when I get enough
saved up for a 2006,

I don’t plan on doing much more with the 2010, but do
have the manual if someone else has any problems. One
mod I would be interested in is if the channel spacing
when searching could be changed from 12,5 KHz in the 380-
512 MHz range to 30 KHz, or even 15 KHz, so I could
better use the GRE Superconverter 9001, I am not going
to get too hung up on this, since MOD-1 on the 2006 I
plan on buying would take care of the problem. That’s
about it for now. Oh, and by the way, if any of this
material is of use to you, feel free to use or reproduce
it as you see fit. Sincerely, Gordy Olson; Fargo, ND

EDITOR's COMMENT .* Step-increment, an internal function of
the CPU, can't be hacked. NOTE: a franchise Radio Shack
Dealer down in Katy, Texas sells, Realistic scanners for
PAR BELOW RETAIL COST; and they're honorable folks. Radio
Shack's standard warranty applies to their merchandise
and they ship QUICK! Contact MaryMac Industries (ask for
Bruce) (800) 231-3680. Typical PRO-2006 cost is $329.00 .

The "WORLD SCANNER REPORT" (c) 1991-2;

V2N7: August, 1992; Page 8

EMERGENCY 12-VOLT GEL—CELL RECHARGER

Hookup
POR -
Ti >J0 4>-Uolt

S-J, 5-2,S-3 = DPDT- S-l

S-H~ SPST on morf)£h/TArty
oft Push Buttda/ ) & fc,

The "WORLD SCANNER REPORT" (c) 1991-2

CONFIDENTIAL SUBSCRIPTION ORDER: Please Print Clearly

CITY:_STATE:_ZIP:_

AMOUNT

PHONE: ( 1 _ENCLOSED: $_

THE BELOj SMIllMi itt 0P110ML 2E ILLL HELP US HELP YOU!

Radio Interests? (Put YEARS OF EXPERIENCE in each block that applies)
VHF-UHF Amateur C8 Shortwave Professional

Scanning?_Radio?_Radio?_Listening?_Radio?_

Career/Profession

Or Occupation?_

List makes $ models of your scanners & other radio equipment:

Describe your technical abilities & interests here

07/26/92 SUBSCRIPTION RATES $ ORDER BLANK V2N7
USA RATES: (Canada +10%: Other Foreion +20%/surf or HOX/Air)

RSR BACK ISSUES ONLY USA $$ Check Items

Any Single Copy, your choice 1 ea $ 4.00 _

1991 (1st 6-mo, Jan-May/Jun) 5 ea $13.50 _

1991 (2nd 6-mo, Jul-Nov/Dec) 5 ea $13.50 _

1991 (1st Year, Jan-Nov/Dec) 10 ea $23.00 _

1992 (3rd 6-mo, Jan-May/Jun) 5 ea $15.00 _

1991- 2 (All the above) 15 ea $35.00 _

RSR CURRENT SUBSCRIPTIONS ONLY

1992 (Ju1y-Nov/Dec) 6-mos 5 ea $15.00 _

1992- 3 (July - May/Jun) l-yr 10 ea $25.00 _

1992-4 (July - May/Jun) 2-yr 20 ea $45.00 _

OTHER PRODUCTS AVAILABLE

HOBBY RADIO BUYER'S DIRECTORY $14.95 ppd surf _

SCANNER MOD HNDBK, Vol-1: $17.95 + $3.00 S&H _ *

SCANNER MOO HNDBK, Vol-2: $17.95 + $3.00 S&H _*

IB-232 Interface Kit: $169.95 t $5 S&H; Foreign $10 S&H_

* Canada US$4 S&H: Other Foreign US$5 S&H: extra for Air Mail
MAKE REMITTANCE PAYABLE IN US FUNDS TO: COMMjCS ENGINEERING
Hobby questions include a 110 S.A.S.E. t 1 loose extra stamp.

12-VOLT GEL CELL CHARGER
By Sgt. Ludicrous, Electronics Bnthusiast

I recently put together an emergency power supply for my
PRO-20136 and thought I'd share with y'all what I came up
with. The basis for it is from the SCANNER MODIFICATION
HANDBOOK, Vol-1, Ch-2, pp 37-44. Hosfelt Electronics,
Inc., has a 12v battery charger kit (#80-220) that has a
regulated output and comes with two 6-volt, 4.2Ah Yuasa
gel cell batteries wired in series for 12-volts. The Ah
rating is below the recommended 10Ah, but this is cured
by adding more cells in parallel. The kit doesn't take
long to assemble, about an hour, with interruptions (in
my case, kids). There is no silk-screened layout on the
component side of the circuit board so attention to parts
placement is needed. I installed the larger parts first
instead of the order given in the directions to reduce
chances of error. The kit comes with what is needed to
mount the charger on top of the batteries or, as the
directions state, it can be used remotely. I opted for
the latter for several reasons, the main one being that
I'm a hacker and can't leave anything as-is. Using Radio
Shack's #270-224 enclosure and parts from my stock room,

I came to what is shown in the drawings on page 9.

SI, a DPDT, is labeled WALL-BATT, S2, a DPDT center off,
is labeled AC-OFF-SOLAR, S3, another DPDT, is labeled
RUN-CHARGE. S4 is an oddball SPDT center off, on one
direction, momentary on the other direction. The reason
for this is that I don't want the Voltage Monitor on all
the time when I'm operating from the battery because it
eats about 20mA and subtracts operating time from the
scanner. There are two caveats when switching from WALL
to BATT: be sure to turn off the scanner, otherwise Fuse
1 may blow; be sure to ventilate the enclosure since it's
a heat producing circuit. The Voltage Monitor is tailored
for my PRO-2006, but can be easily adjusted for other
things that operate from 12 volts. As few as two LEDs
and as many as ten can be used. To align the V-Monitor,

The "WORLD SCANNER REPORT" (c) 199

with my PRO-2006, I first charged the gel cells and then
used them on the receiver until they ran down to the
point that the scanner ceased to function. I then set Rs
so that D1 was on. I have since repeated this just to be
sure of the turn on/off voltages. It was only a couple of
days before my emergency power supply got its test under
fire. Apparently a local sect of ultra-militant squirrels
planned and successfully executed a suicidal act of
sabotage. One of them, under cover of being a friendly,
curious squirrel, infiltrated a local power substation
and disrupted the lives of his enemy. His martyrdom was
short lived thanks to the crack commando LINEMAN squad
which restored electricity and foiled their plans to
commit further mayhem. You should get one of Hosfelt's
big 112-pg catalogs. Besides kits, they also carry direct
replacement IC's for Uniden Bearcat scanners, signal
meters, varactor diodes, and the Sound Level Meter that
can be used as an ELF monitor (see WSR, V1N6, July ’91)
for seven bucks less than RadioShack. I just recently got
the solar panel so I'm unable to tell you much about it
other than it’s from American Science & Surplus and was
specifically designed to recharge 12v batteries. Below
is a list of sources for this project. Happy Hacking!

SOLAR RESOURCES

GELL CELLS & COMPONENTS

PAK RAT ELECTRONICS

HOSFELT ELECTRONICS, INC.

BOX 690073

2700 SUNSET BLVD

HOUSTON, TX 77269

STEUBENVILLE, OH43952

Catalog: $3.00

800-524-6464

ELECTRONIC GOLDMINE

AMERICAN DESIGN COMPONENTS

BOX 5408

815 FAIRVIEW AVE

SCOTTSDALE, AZ 85261

FAIRVIEW, NJ 07022

AMERICAN SCIENCE/SURPLUS

EASYTECH

601 LINDEN PLACE

2917 BAYVIEW DR

EVANSTON, IL 60202

FREEMONT, CA 94538

Catalog: $.50

800-582-4044

-2; V2N7: August, 1992; Page 10

COMMTRONICS ENGINEERING
The "WORLD SCANNER REPORT"
PO BOX 262478
SAN DIEGO, CA 92196-2478

920730V2M7P8 _

IN TTI 1S I SSUE ISSN-1061-9240 EI JZS'T CLASS MLaTL

+ The Year of the Interface Continues: HB-232 Updates

t The Feedhora BBS Affiliates with the Hertzian Intercept BBS

♦ Computer Information Plow - High Speed Modem Source

+ Scanner Frequency Management; Part 5; + ProScan; A Scanner Freq Database Manager

t Emergency power & a 12-Volt Gel Cell Charger

+ Dorking with Surface Mount Devices (SMD) l components

t Repairing Damaged Circuit Traces

t LINKALL Extended Memory Controller for PRO-2004/5/6

t "The Pouch": rugged handheld radio carrying cases

+ PRO-2010 Tips 6 Mods; + PRO-43 Is Here! + MOD-31 6 33 Tips; and MORE!